Coves sea water temperatures peak in the range 29 to 31°C (84 to 88°F) on around the 15th of January and are at their coldest on about the 23rd of August, in the range 26 to 29°C (79 to 84°F). Year round warm sea water temperatures at Coves mean that a rash vest and board shorts should be fine for surfing at any time of year